| Medium Tactical Vehicle Replacement | |
|---|---|
 MTVR convoy in Iraq | |
| Overview | |
| Manufacturer | Oshkosh Corporation |
| Also called | MTVR |
| Production | 1998-present |
| Body and chassis | |
| Class | Truck |
| Layout | AWD 6x6 |
| Powertrain | |
| Engine |
Caterpillar C13 440 hp 12.8 L, Caterpillar C9 400 hp 8.8 L |
| Transmission | Allison 4700 SP 7-speed automatic |
| Dimensions | |
| Wheelbase | 183.6 in (4,663 mm) (MK23) |
| Length | 315.6 in (8,016 mm) (MK23) |
| Width | 98.4 in (2,500 mm) (MK23) |
| Height | 144.0 in (3,658 mm) |
| Chronology | |
| Predecessor | M939 |
Medium Tactical Vehicle Replacement (MTVR) or 7-Ton, is an all-wheel drive all-terrain vehicle used by the United States Marine Corps and United States Navy.
It is designed to replace the old M939 tactical trucks, and was first fielded in 1998, after the contract was awarded to Oshkosh Truck Corporation. The MTVR comes in several variants, for a wide spectrum of tasks. It offers a major improvement in off-road capability.
The MTVR is often referred to as a 7-Ton - 7 short tons (6,400 kg); denoting the vehicle's off-road cargo capacity. The MTVR's maximum payload on paved surfaces is 15 short tons (14,000 kg). The MTVR is the Marine Corps prime mover for the M777 howitzer, fuel and water assets, troops and a wide variety of equipment. Its wide versatility and offroad capability make the MTVR an integral part of the Marine Corps logistics backbone.
The TerraMax is an Oshkosh-developed, driver-less, MTVR-based entrant in the DARPA Grand Challenge.
Variants[]
There are now twelve variations of the MTVR.[1] All models are six-wheel drive (6x6), unless noted otherwise:
| Model | Cargo Bed | Vehicle Length |
Wheelbase | Turning Diameter curb-to-curb |
Width | Height | Curb Weight | GVWR | Maximum Speed |
Engine | Transmission | Transfer Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MK23 Cargo | length 14 ft (4.3 m) |
26.3 ft; 8.0 m | 15.3 ft; 4.7 m | 86 ft (26 m) | 8.2 ft; 2.5 m | 12 ft; 3.6 m | 27,900 lb 12,700 kg |
62,200 lb 28,200 kg |
65 mph 105 km/h |
Caterpillar C13 440 hp 12.8 L |
Allison 4700 SP 7-speed automatic |
Oshkosh 30000 Series |
| MK25 Cargo w/ self-recovery winch |
29,100 lb 13,200 kg | |||||||||||
| MK27 Cargo | length 20 ft (6.1 m) |
32.3 ft; 9.8 m | 18.0 ft; 5.5 m | 102 ft (31 m) | 30,600 lb 13,900 kg | |||||||
| MK28 Cargo w/ self-recovery winch |
31,700 lb 14,400 kg | |||||||||||
| MK29 Dump | volume 6.5 cu yd (5.0 m3) |
26.4 ft; 8.1 m | 15.3 ft; 4.7 m | 86 ft (26 m) | 31,800 lb 14,400 kg | |||||||
| MK30 Dump w/ self-recovery winch |
32,500 lb 14,700 kg | |||||||||||
| MK31 Tractor | Fifth Wheel Vertical Loading: 32,000 lb (15,000 kg) |
24.8 ft; 7.5 m | 15.3 ft; 4.7 m | 60 ft (18 m) rear steer |
27,800 lb 12,600 kg |
GCWR: 138,200 lb 62,700 kg | ||||||
| MK36 Wrecker | Crane: 22,000 lb (10,000 kg) Flat Tow: 62,200 lb (28,200 kg) Lift & Tow (GVWR): 49,000 lb (22,000 kg) |
32.3 ft; 9.8 m | 18.0 ft; 5.5 m | 102 ft (31 m) | 34,400 lb 15,600 kg |
62,200 lb 28,200 kg | ||||||
| MK37 HIMARS resupply |
Crane: 10,000 lb (4,500 kg) carries two (2) MFOM pods |
30 ft; 9.1 m | 18.0 ft; 5.5 m | 102 ft (31 m) | 49,100 lb 22,300 kg |
63,500 lb 28,800 kg | ||||||
| 4x4 Cargo | length 10 ft (3.0 m) |
22.2 ft; 6.8 m | 15.3 ft; 4.7 m | 72 ft (22 m) or 50 ft (15 m) rear steer |
8.0 ft; 2.4 m | 21,810 lb 9,890 kg |
42,700 lb 19,400 kg |
Caterpillar C9 400 hp 8.8 L | ||||
| 6x6 LHS (Load Handling System) |
length 20 ft (6.1 m) LHS: 18,000 lb (8,200 kg) |
31 ft; 9.4 m | 18.9 ft; 5.8 m | n/a | 8.2 ft; 2.5 m | 33,500 lb 15,200 kg |
62,200 lb 28,200 kg |
Caterpillar C13 440 hp 12.8 L | ||||
| 8x8 LHS (Load Handling System) |
length 20 ft (6.1 m) LHS: 33,000 lb (15,000 kg) |
33.5 ft; 10.2 m | 21.3 ft; 6.5 m | 93 ft (28 m) | 41,600 lb 18,900 kg |
84,000 lb 38,000 kg |
Oshkosh 55000 Series |
Two MK23 MTVR's equipped with Plasan MAS armor at Camp Pendleton, California
An MK36 wrecker lift towing an MK23 at Camp Fallujah, Iraq, December 2004.
The MK36 wrecker at Camp Foster, Okinawa, 18 March 2005.
Features[]
- All MTVR's are equipped with a Central Tire Inflation System (CTIS). This allows the operator to select tire inflation pressures in accordance to vehicle payload and terrain type.
- Extra-long wheelbase MTVR's are capable of hauling a 1 TEU sized Shipping Container.
- MK 23 through MK 29 MTVR models have stowable dropsides. This allows for flexibility in moving cargo and troops.
- All models feature a built-in turret stand and roof opening for operating vehicle-mounted weapons.
- Some MTVRs are fitted with an armor kit designed and produced by Plasan.[2]
Concerned military occupational specialties[]
United States Marine Corps
Operation and 1st Echelon Maintenance of the MTVR and fall under the 3531 MOS Part of the larger 3500 series of MOS concerned with Motor Transport. Maintenance beyond the 1st Echelon is the responsibility of Marines with the 3521 Organizational Automotive Mechanic MOS.
United States Navy
MTVR's are operated primarily by Seabees in Naval Mobile Construction Battalions with an Equipment Operator (EO) rating. Maintenance is the responsibility of Construction Mechanics (CM).
Operators[]
- United States - 11,000+ delivered the United States Marine Corps and Navy Seabees. In September 2012, the Marines ordered 260 vehicles of the Mk 25, Mk 27, and Mk 28 variants. Production will begin in April 2013 and be concluded in September 2014.[3]
Egypt
See also[]
- Logistics Vehicle System (LVS)
- Oshkosh M-ATV
Notes[]
- ↑ "MTVR". Oshkosh Defense. http://www.oshkoshdefense.com/products/6/mtvr. Retrieved 18 October 2012.
- ↑ Medium Tactical Vehicle Replacement (MTVR) Armor Protection Kit [APK] Marine Armor System (MAS)
- ↑ MTVR order - ArmyRecognition.com, September 8, 2012
External links[]
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Wikimedia Commons has media related to MTVR truck. |
The original article can be found at Medium Tactical Vehicle Replacement and the edit history here.